47RE Governor Pressure Solenoid, new and ready to install. Fits the 47RE. Ships fast from the USA.
If your 1996-1999 Ram 2500 or 3500 with the 5.9L Cummins and 47RE starts out in second, shifts at random speeds, or will not go into third when you put your foot in it, the governor pressure circuit is the usual suspect. This kit replaces the whole electronic governor top end in one box: a billet aluminum pressure manifold, a new Borg-Warner solenoid of the GM electronic pressure control style that rides on it, and a new governor pressure transducer (sensor). The pictured kit also includes the mounting bolts and an instruction sheet. It is built for trucks that tow or run more line pressure than stock.
On a 47RE the first three gears are still shifted hydraulically. Governor pressure pushes the 1-2 and 2-3 shift valves up against throttle pressure, and since 1996 the PCM makes that pressure electronically. It sends the solenoid a duty cycle that works backward from what most people expect: more on-time bleeds off more pressure, and a near-zero command lets governor pressure rise toward line pressure. The transducer reads the result and reports it to the PCM so it can correct. The target is zero pressure at a stop, then roughly 1 psi for every mph up to about 40 mph; above that the PCM shuts the solenoid off and full pressure holds the shift valves up. The PCM will not run the solenoid at all without a good output speed sensor signal. A warped governor body that cross-leaks pressure is a common way this system goes bad on a hot-running diesel transmission, which is why this kit uses a machined billet manifold.
Do not throw a solenoid at a wiring problem. Check the governor connector and the pass-through at the case, and confirm the output speed sensor reads vehicle speed on a scan tool. Then compare desired versus actual governor pressure, and if you can, tee a 0-100 psi gauge into the governor pressure port. Pressure at a stop in Drive, or in Park, Reverse and Neutral, says the solenoid or a cross-leaking governor body is bad. Our 47RE governor solenoid symptoms guide covers the gauge test step by step, and the 47RE valve body testing guide covers worn governor plug bores that imitate a bad solenoid.
The listing names 1996-1999 46RE, 47RE and 48RE units, and the transducer in the kit is the early brass-body style used through 1999. That matters: 1999 and earlier trucks have a governor pressure sensor with an oval connector, while 2000 and later trucks use a rectangular plastic sensor and a different harness plug. On a 2000-2002 47RE, choose a 2000-up kit instead. If your truck has had a replacement valve body or transmission, drop the pan and look at the sensor plug before you order, or send us the year and VIN. More parts for this unit are on our 47RE collection page.
| Fits | 47RE |
| Part type | Governor Pressure Solenoid |
| Condition | New |
| Brand | OEM |
| Reference | A518 |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
Yes. The kit includes a new governor pressure transducer along with the billet manifold and solenoid, so you are not reusing an old sensor.
It is listed for 1996-1999. 2000 and later trucks use a rectangular plastic sensor and a different harness plug, so a 2000-up kit is the right choice for them.
The kit uses a Borg-Warner electronic pressure control solenoid of the GM design on a billet manifold. The idea is a manifold that does not warp or leak and steadier pressure than a worn factory governor body.
That is what it is built for. It is intended to handle higher base line pressure without the wrong-gear starts and governor offset codes that weaker solenoids can cause.
Clear codes and drive through several stops so the PCM resets the transducer zero. Check the fluid level hot afterward.
